/*
 * Copyright (c) 2008 CO-CONV, Corp. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
#include <sys/types.h>
#include <sys/param.h>
#include <sys/random.h>

ULONG Seed = 0;

void
read_random(uint8_t *buf, unsigned int len)
{
	uint8_t *ptr;
	ULONG random = 0;

	for (ptr = buf; ptr < buf + len; ptr += sizeof(ULONG)) {
		random = RtlRandomEx(&Seed);
		*ptr = ((uint8_t *)&random)[0];
		if (ptr + 1 == buf + len)
			continue;
		*(ptr + 1) = ((uint8_t *)&random)[1];
		if (ptr + 2 == buf + len)
			continue;
		*(ptr + 2) = ((uint8_t *)&random)[2];
		if (ptr + 3 == buf + len)
			continue;
		*(ptr + 3) = ((uint8_t *)&random)[3];
	}
}
